.\" $NetBSD$
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.\" Copyright (c) 2010 Jukka Ruohonen <jruohonen@iki.fi>
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.Dd March 23, 2010
.Dt ACPIWMI 4
.Os
.Sh NAME
.Nm acpiwmi
.Nd Windows Management Instrumentation support for
.Tn ACPI
.Sh SYNOPSIS
.Cd "acpiwmi* at acpi?"
.Cd "acpiwmibus* at acpiwmi?"
.Cd "wmidell* at acpiwmibus?"
.\" .Cd "wmihp* at acpiwmibus?"
.Sh DESCRIPTION
The
.Nm
driver provides an
.Tn ACPI
interface for Windows Management Instrumentation
.Pq Tn WMI .
The
.Tn ACPI
.Tn WMI
interface is typically used to support vendor
specific features found in various laptops.
.Sh SUPPORTED MAPPINGS
The following WMI mappings are supported:
.Bl -tag -width "wmidell " -offset indent
.It Sy wmidell
Dell laptops
.\" .It Sy wmihp
.\" Hewlett-Packard laptops
.El
.Pp
The functionality varies from vendor to vendor.
Typically the interface is used for function and hotkey handling,
but additional features may be present.
Multiple
.Nm
devices are supported, but each can have only one child device.
.Sh SEE ALSO
.Xr acpi 4
.Rs
.%A Microsoft Corporation
.%D December 4, 2001
.%T Windows Instrumentation: WMI and ACPI
.%U http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx
.Re
.Sh HISTORY
The
.Nm
device driver appeared in
.Nx 6.0 .
.Sh AUTHORS
.An Jukka Ruohonen
.Aq jruohonen@iki.fi
wrote the actual
.Nm
as well as
.Sy wmidell .
.\"
.\" and .Sy wmihp ,
.\" based on the earlier work done by
.\" Michael Gmelin
.\" .Aq freebsd@grem.de
.\" for
.\" .Fx .
.Sh CAVEATS
While WMI should provide a certain degree of portability across laptop
models from a particular vendor, there is no guarantee that the mappings
are functional in all models.
